# Add fields to existing Mapping

## Description

* If you want to add fields to an existing mapping, then you can use this sample script.

## Input

* Instance details:
  * Instance details like <code class="expression">space.vars.SITENAME</code> instance URL, username and password are to be given in **instanceDetails.properties** file available within script.
* Mapping details (to be given at the time of script execution):
  * Mapping id to be updated.
  * Internal name of the field of system 1.
  * Internal name of the field of system 2.

### Output

* Updated mapping

### Script

You can download the script from [here](https://opshub.com/ohftp/AdminAPI/addFieldsToMapping.zip).

Below is an example of execution of script which shows the input and output:

<div align="center"><img src="https://818964384-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FK5eA7qMDBFu0HHHMDehi%2Fuploads%2Fgit-blob-1716b06e76652683f13eacce149136b25f948a13%2FAdmin-API-Rest-5a.png?alt=media" alt=""></div>